Area Forecast Discussion
Issued by NWS Knoxville/Tri Cities, TN

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000 FXUS64 KMRX 220231 AFDMRX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 1031 PM EDT THU AUG 21 2014 .DISCUSSION...SMALL CLUSTER OF GENERALLY WEAK THUNDERSTORMS HAS MOVED SE OUT OF THE FORECAST AREA...AFFECTING MAINLY SW VA AND THE NE TIP OF TN. RAP MODEL SEEMS TOO AGRESSIVE IN DEVELOPING MORE SHOWERS AND STORMS DURING THE EARLY MORNING HOURS. FAVORING THE DRIER NAM AND HRR MODELS...WHICH DON`T SHOW ANY MORE CONVECTION UNTIL POSSIBLY TOWARD OR AFTER 12Z FRIDAY IN SW VA. THUS...OPTED TO DROP POPS FOR THE REMAINDER OF THE FORECAST AREA OVERNIGHT. ADDED PATCHY FOG WHERE THE SHOWERS AND STORMS MOVED ACROSS... AND TWEAKED A FEW TEMPS THAT WERE RAIN COOLED. NO OTHER CHANGES. && .PRELIMINARY POINT TEMPS/POPS... CHATTANOOGA AIRPORT, TN 71 96 73 96 / 20 20 20 20 KNOXVILLE MCGHEE TYSON AIRPORT, TN 70 92 73 93 / 30 30 30 40 OAK RIDGE, TN 69 92 72 93 / 30 30 30 40 TRI CITIES AIRPORT, TN 65 89 68 90 / 60 50 50 40 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && $$ TG

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